JSP登录中Session的用法实例详解

2023-07-25 09:24:09 62

importjava.io.IOException; importjavax.servlet.ServletException; importjavax.servlet.annotation.WebServlet; importjavax.servlet.http.HttpServlet; importjavax.servlet.http.HttpServletRequest; importjavax.servlet.http.HttpServletResponse; importjavax.servlet.http.HttpSession; /** *ServletimplementationclassIndexServlet */ @WebServlet("/IndexServlet") publicclassIndexServletextendsHttpServlet{ privatestaticfinallongserialVersionUID=1L; /** *@seeHttpServlet#HttpServlet() */ publicIndexServlet(){ super(); //TODOAuto-generatedconstructorstub } /** *@seeHttpServlet#doGet(HttpServletRequestrequest,HttpServletResponseresponse) */ protectedvoiddoGet(HttpServletRequestrequest,HttpServletResponseresponse)throwsServletException,IOException{ //TODOAuto-generatedmethodstub response.getWriter().append("Servedat:").append(request.getContextPath()); } /** *@seeHttpServlet#doPost(HttpServletRequestrequest,HttpServletResponseresponse) */ protectedvoiddoPost(HttpServletRequestrequest,HttpServletResponseresponse)throwsServletException,IOException{ //TODOAuto-generatedmethodstub request.setCharacterEncoding("utf-8"); Stringuser=request.getParameter("user"); Stringpassword=request.getParameter("password"); Stringpath=request.getContextPath(); HttpSessionsession=request.getSession(); if("1".equals(user)&&"1".equals(password)){ session.setAttribute("name",user); response.sendRedirect(path+"/success.jsp"); }else{ response.sendRedirect(path+"/Index.jsp"); } } }

<%@pagelanguage="java"import="java.util.*"pageEncoding="UTF-8"%> <% Stringpath=request.getContextPath(); %> <% Objectname=session.getAttribute("name"); if(name==null){ response.sendRedirect(path+"/Index.jsp"); } %> 成功页面恭喜你，骚年，<%=session.getAttribute("name")%>,成功登陆了！注销

<%@pagelanguage="java"contentType="text/html;charset=UTF-8"pageEncoding="UTF-8"%> Inserttitlehere <% Stringpath=request.getContextPath(); %> <% session.removeAttribute("name"); response.sendRedirect(path+"/Index.jsp"); %>

JSP登录中Session的用法实例详解

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